A connection system and construction method of combined shear wall

Abstract

The invention particularly discloses a connecting system of hybrid coupled shear wall. The connecting system comprises exposed web members and adjacent shear wall limbs, built-in steel trusses and steel columns are arranged in the shear wall limbs, and the steel columns are fixedly connected with connecting plates; the two ends of each exposed web member are fixedly connected with the connecting plates on the steel column arranged in the shear wall limb adjacent to the exposed web member, the steel columns, the exposed web members and the built-in steel trusses are combined into an integral steel truss through the connecting plates. The connecting system effectively solves the technical problems existing at present, the exposed web members and the built-in steel trusses of the shear wall limbs are combined, therefore, the technical defect that an existing connecting beam is subjected to a bend shear effect in an earthquake is eliminated, modularized construction of the hybrid coupled shear wall becomes possible, and not only is the construction cycle effectively shortened, but also construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of combined limb shear walls, in particular to a connection system and construction method of combined limb shear walls. Background technique [0002] The combined shear wall structure is a lateral force-resistant system that combines two or more reinforced concrete shear walls to resist horizontal loads through connecting beams, because of its high lateral stiffness and redundancy of bearing capacity, etc. It has become one of the forms commonly used in the structure of high-rise buildings (especially super high-rise buildings above 300 meters) in China. Combined shear walls resist horizontal loads through a dual mechanism. Different from the ordinary shear wall which only relies on the plastic hinge energy consumption at the bottom of the shear wall, the rationally designed combined shear wall conforms to the principle of multiple seismic defense lines. The steel coupling beam as the first defense line fi...

AI Technical Summary

Problems solved by technology

However, the composite steel truss coupled shear wall still has the following disadvantages due to the use of the traditional coupling beam structure system: the coupling beam is rigidly connected to the steel column, and the coupling beam is subjected to bending and shearing forces at the same time, which are transmitted to the concrete, resulting in joint area (The connection point between the coupling beam and the steel column) The concrete is severely cracked or even peeled off; the separate setting of each coupling beam (construction floor, generally 1 to 3 floors) will cause serious local damage to each floor (construction floor), which is difficult to repair

The mechanical system of the combined rectangular beam-column frame and the combined shear wall structure of this structure is essentially different and has the following defects: First, the application range of the built-in steel truss concrete combined rectangular beam-column frame is limited, and it is only suitable for The closed structure of the beam-column frame or the beam-column frame structure in the shape of a space cylinder is adopted, and then the steel truss is built in the shear wall of the frame structure, and then the bearing capacity of the beam is improved by using the built-in steel truss, so as to prevent The role of premature yielding of beams, and at the same time improve the structural stability, and the application range of combined shear walls is larger and more extensive, because the structural stress system of combined shear walls is not necessarily spatially cylindrical Or limit the closed connection of the wall; the second is that the structural force system of the composite shear wall and the force system of the beam-column frame structure do not belong to the same kind of building structure force system, and there is a clear difference, because the scope of application of the frame structure Narrower, even the combined rectangular beam-column frame with built-in steel truss is only used in ordinary high-rise buildings, while the combined shear wall is mainly used in the earthquake resistance of super high-rise buildings.

[0007] To sum up, at present, it is still impossible to effectively overcome the problem of coupling beams in the composite combined shear wall structure system at home and abroad. Effectively overcome the technical defects of the current coupling beams subjected to bending and shearing during earthquakes

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